Frame for nailing machines



- July 5, 1949.

H. D. BENSON 2,475,124

FRAME FOR MAILING MACHINES Filed June 6, 1947 3 Sheets-Sheet 1 E 3 )W 17 "r"*' 1 Hi I I I} I l I II I 1 I! X Z I 2 I3 5 O O 000 Q5 INVENTOR. .l-fiuDnBenson s B HTTYS y H. D. BENSON I 2,475,124

FRAME FOR NAILING MACHINES Filed June 6, 1947 3 Sheets-Sheet 2 fl- "x8 13 10 "-13 3 2 L J I I! 5 .Flcg. 4

' INVENTOR. 115. .D. Benson HTTYS July 5, 1949. H. D. BENSON 2,475,124

FRAME FOR NAILING MACHINES Filed June 6, 194'? s Shee'tsSheet s I N VEN TOR.

Patented July 5, 1949 UNITED STATES PATENT OFFICE eral Nailing Machine Corporation,

Sanger,

Calif, a corporation of California Application June 6, 1947, Serial No. 752,974

Claims.

This invention is directed generally to box nailing machinery.

One object of the present invention is to provide a novel frame for a nailing machine; such frame being, in the main, of sheet metal fabricated in a manner to provide strength and rigidity without undue weight.

Another object of the invention is to provide a nailing machine frame, as above, which is designed for ease of manufacture or assembly from a relatively small number of preformed sheet metal parts; said parts being secured together, as by welding, into a unitary structure.

An additional object of the invention is to provide a unitary sheet metal frame, for the purpose described, which is fitted-in novel combinationwith certain heavy-duty metal members rigidly mounted in the frame and adapted to carry or support the working parts of the nailing machine.

A further object of the invention is to provide a simple, inexpensive, and practical frame for nailing machines, and yet one which will be exceedingly effective for the purpose for which it' is designed.

These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings:

Fig. 1 is a sectional elevation of the improved frame for nailing machines.

Fig. 2 is a fragmentary sectional plan on line 2-2 of Fig. 1.

Fig. 3 is a transverse section on line 3-3 of Fig. 1.

Fig. 4 is a fragmentary sectional plan on a line 4--4 of Fig. 1.

Referring now more particularly to the characters of reference on the drawings, the nailing machine frame comprises a pair of vertical, transversely spaced side legs, each of which is indicated generally at I. These side legs are formed of sheet metal, each being of channel configuration, tapering somewhat from bottom to top, and facing laterally inwardly, i. e. opening toward each other.

The outer wall of each leg I is indicated at 2, and the spaced-apart side walls are indicated at 3. Along their free edges the side walls 3 are formed with inturned stiffening lips 4 which extend substantially full length of the legs I.

At the top of the frame the latter is fitted with a preformed sheet metal cap assembly, indicated generally at 5, secured in matching rigid relation with the upper ends of said legs I, as by welding. 35

This cap assembly 5 is of generally inverted channel shape in cross section.

At the bottom of the frame the legs I are connected together in rigid relation by a somewhat U-shaped base 6 having upstanding walls 1 and 8 at opposite ends thereof; said walls I and 8 bearing, at their ends, against and being welded to corresponding stiffening lips 4 of side walls 3 of the legs I.

At their upper edges the walls I and 8 are formed with inturned, transverse flanges 9 and I8, respectively, for the purpose of adding rigidity to the structure.

To stabilize the frame on the floor, the legs I are fitted, at the bottom thereof, with oppositely projecting hollow feet II of prefabricated sheet metal, which feet are welded to said legs.

The above described frame, bieng formed in its substantial entirety of sheet metal, is relatively light weight, and inexpensive to manufacture; yet provides a sturdy and rigid structure for the sup port of the working parts or mechanisms of the machine.

With the described sheet metal frame there is included, in novel combination therewith, a plurality of heavy-duty metal members, as hereinafter described, for the purpose of mounting or attachment of said Working parts or mechanisms, which obviously could not be secured to the relatively light sheet metal of the frame.

These heavy-duty metal members comprise the following:

Adjacent but short of the lower ends of the legs I, each thereof is fitted with a vertical plate I2 of heavy metal disposed within said leg parallel to its outer wall 2, but resting against the inner face of the stiffening lips 4.

These plates I2 are of heavy-duty, relatively non-bendable metal, and are welded at their ends to corresponding side walls 3; such plates (which are known as the transmission plates) facing each other and beingadapted to support, in journaled relation, certain of the rotary mechanisms (not shown) of the nailing machine.

The wall I of the U-shaped base 6 is fitted, on the outside, with an inverted U-shaped bracket I3 in which an electric drive motor is adapted to be mounted, with its endless drive extending through a port I4 to the rotary mechanisms adapted to be carried between the heavy-duty plates I2.

Adjacent their upper ends the legs I are each fitted with a pair of vertically spaced, horizontal mounting bars I5 which abut the inner face of the stiffening lips 4 in the same manner as the 3 plates l2; said bars [5 being fixedly secured at their ends to the side walls 3, as by welding.

The pairs of horizontal mounting bars l5 carry therebetween vertical, transversely spaced guide bars I B which guide vertical reciprocation of the top driver bar I! of the nailing mechanism. This top driver bar reciprocates relative to posts I8 adapted to am? the nailing units and work supporting nailing table's (not shown). The guide bars I6, top driver bar I1, and posts [8 are indicated in broken lines to illustrate their relative positions within the frame; it not being necessary to here illustrate the nailing mechanism in any great detail. p}

The plates [2, together with the mounting l5, not only serve as a fixed support for certain of the working parts, but they also tend to add further strength and stability to the sheet metal frame.

If desired, cover plates may be attached to the legs I on adjacent sides thereof, by securing said cover plates to the stiffening lips 4, I

From the foregoing aesthetics it will be readily seen that there hasbeeh produced such a device as substaiitialli fulfills the objects of the inventiohas set forth herein; I

While this steeifiaaneh sets forth in detail the present and preferred tenements of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit ofthe "invention, as defined by the api ehded claims.

Having thus described the invention, the following-ifs icllaiiiied as newaiid useful, and upon which Letters Patent are desired:

1. -21 nailing inaehihe name comprising a pair of spaced apart 'legs', leg consisting of relatively light sheet inetal and being of channel shape to provide an outer wall and two side walls, the free edges of the side walls being inturned to form narrow stiffening lips, the open sides of such channel shaped legs being disposed in facing relation, 2. cap connecting the upper ends of said legs, a base, such vbase consisting of relatively light sheet metal and of inverted U-shape in cross secti'cin, such base projecting between the legs, and the ends of the base being secured to the insides of the legs adjacent the inturned lips.

2. A frame as in claim 1, including an inturned flange formed on the upper edge of each of the side walls of the base.

3. A s't"dtu're as in claim 1, including a sheet metal bracket of inverted U-shape secured to one wall of the base, such wall being provided with an open port adjacent one end of the bracket.

4. A frame as in claim 1 including a rigid heavy duty metal plate extending across from and se- Number I N'a'rne Date v D. C am'emta NbV. 1,346,510 weaver (Jet. 25, 1927 1.9514551 Sherman A' 'r. 10, 1934 2,287,662 Miner use. 23, 1941 

